409705280

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:368

約数の個数: 112

約数和(自身を含む): 1005352320

約数和(自身を除く): 595647040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 139, 151, 160, 244, 278, 302, 305, 320, 488, 556, 604, 610, 695, 755, 976, 1112, 1208, 1220, 1390, 1510, 1952, 2224, 2416, 2440, 2780, 3020, 3904, 4448, 4832, 4880, 5560, 6040, 8479, 8896, 9211, 9664, 9760, 11120, 12080, 16958, 18422, 19520, 20989, 22240, 24160, 33916, 36844, 41978, 42395, 44480, 46055, 48320, 67832, 73688, 83956, 84790, 92110, 104945, 135664, 147376, 167912, 169580, 184220, 209890, 271328, 294752, 335824, 339160, 368440, 419780, 542656, 589504, 671648, 678320, 736880, 839560, 1280329, 1343296, 1356640, 1473760, 1679120, 2560658, 2713280, 2947520, 3358240, 5121316, 6401645, 6716480, 10242632, 12803290, 20485264, 25606580, 40970528, 51213160, 81941056, 102426320, 204852640, 409705280]

約数ペア:

[(1, 409705280), (2, 204852640), (4, 102426320), (5, 81941056), (8, 51213160), (10, 40970528), (16, 25606580), (20, 20485264), (32, 12803290), (40, 10242632), (61, 6716480), (64, 6401645), (80, 5121316), (122, 3358240), (139, 2947520), (151, 2713280), (160, 2560658), (244, 1679120), (278, 1473760), (302, 1356640), (305, 1343296), (320, 1280329), (488, 839560), (556, 736880), (604, 678320), (610, 671648), (695, 589504), (755, 542656), (976, 419780), (1112, 368440), (1208, 339160), (1220, 335824), (1390, 294752), (1510, 271328), (1952, 209890), (2224, 184220), (2416, 169580), (2440, 167912), (2780, 147376), (3020, 135664), (3904, 104945), (4448, 92110), (4832, 84790), (4880, 83956), (5560, 73688), (6040, 67832), (8479, 48320), (8896, 46055), (9211, 44480), (9664, 42395), (9760, 41978), (11120, 36844), (12080, 33916), (16958, 24160), (18422, 22240), (19520, 20989)]